Particles of mass 10\(^{-2}\)kg is fixed to the tip of a ...
Particles of mass 10\(^{-2}\)kg is fixed to the tip of a fan blade which rotates with angular velocity of 100rad-1. If the radius of the blade is 0.2m, the centripetal force is
2 N
20 N
200 N
400 N
Correct answer is B
Centripetal Force (F\(_c\)) = \(\frac{mv ^2}{r}\)
= \(mω^2r\)
(Since V = ωr)
F = 100 x 0.2
F =20 N
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